Which defense mechanism involves unconscious expulsion or conscious suppression of disturbing material from awareness?

Distinguish between Freud's concepts of the primary and secondary gains experienced by those with conversion disorder.

What will be an ideal response?

Which research strategy attempts to address questions about cause-and-effect relationships but fails to produce an unambiguous answer because the study contains a flaw?

a. experimental b. quasi-experimental c. nonexperimental d. correlational